Power Driven Vessel
Underway, probably
over 50m, Starbourd
side to
Vessels under 50m do not
have to show two
masthead lights but may
choose to.
The forward masthead
light is the lower of the
two.
Fishing Vessel (other
than trawling), Probably
over 50m, Port side to
All-round Red over
White plus the normal
lights of as power driven
vessel
Power Driven Vessel
Underway, under 50m,
Starbourd side to.
Yellow Flashing Light
Signifies a Hover Craft in
non-displacement mode
Sailing Vessel
Underway, port side to.
If the sailing vessel is
under 20m the lights can
be combined into a Tri-
colour masthead light
Sailing Vessel
Underway, head on
showing optional all-
round lights
These lights must be
used with side and stern
lights (not Tri-colour)
A sailing vessel shows
this in its rigging what
does it mean?
It is motor sailing and
should be considered as
a power driven vessel
Boat aground over 50m
White light as for vessel
at anchor plus two all-
round red lights
vertically above each
other
Fishing Vessel (other
than trawling), Probably
over 50m, Head On
All-round Red over
White plus the normal
lights of as power driven
vessel
Power Driven Vessel
Underway, under 50m,
port side to.
Vessels under 50m only
have to show one
masthead light but may
choose to show two
Vessel with Tow, Stern
to
The towing vessel
shows an extra yellow
stern light above the
white stern light
The tow shows a single
stern light
Power Driven Vessel
Underway, probably
over 50m, head on
Vessels under 50m do not
have to show two
masthead lights but may
choose to.
The forward masthead
light is the lower of the
two.
Boat aground under
50m
White light as for vessel
at anchor plus two all-
round red lights
vertically above each
other
Vessel Restricted in their
Ability to Manoeuvre
Engaged in underwater
operations
Safe to pass on the side with
the diamonds
Vessel Engaged in Mine
Clearance Operations,
starboard side to
Three all-round green
lights plus the normal
lights for a power driven
vessel
Do not approach within
1000m
Fishing Vessel (other
than trawling), Not
Making Way
All-round Red over
White plus the normal
lights of as power driven
vessel
Power Driven Vessel
Underway, under 50m,
head on.
Vessels under 50m only
have to show one
masthead light but may
choose to show two.
I have a diver in
the water
Rigid replica of the
International Code
Flag "A" not less than
1 metre in height
Vessel with Tow, Probably
greater than 50m, Head On,
Tow less than 200m
The tow is measured from
the stern of the towing
vessel to stern of the tow
The towing vessel shows
two mast head visible from
the bow to 22.5 degrees
behind the beam plus side
lights
The tow shows side lights
Vessel Engaged in Mine
Clearance Operations,
head on
Three all-round green
lights plus the normal
lights for a power driven
vessel
Do not approach within
1000m
Stern Light
Boat under 7m and
speed less than 7 knots
Boat at anchor under
50m
Note: white lights
(particularly when they
are high up) can be seen
further than “coloured” lights
Vessel with Tow, Less than
50m, Head On, Tow greater
than 200m
The tow is measured from the
stern of the towing vessel to
stern of the tow
The towing vessel shows two
mast head visible from the
bow to 22.5 degrees behind
the beam plus side lights
The tow shows side lights
Sailing Vessel
Underway, stern to
showing optional all-
round lights
These lights must be
used with side and stern
lights (not Tri-colour)
Vessel with Tow, Less than
50m, Head On, Tow less than
200m
The tow is measured from the
stern of the towing vessel to
stern of the tow
The towing vessel shows two
mast head visible from the
bow to 22.5 degrees behind
the beam plus side lights
The tow shows side lights
Fishing Vessel Trawling,
Probably over 50m,
Head On
All-round Green over
White plus the normal
lights of as power driven
vessel
Sailing Vessel
Underway, port side to
showing optional all-
round lights
These lights must be
used with side and stern
lights (not Tri-colour)
Sailing Vessel
Underway, head on.
If the sailing vessel is
under 20m the lights can
be combined into a Tri-
colour masthead light
Sailing Vessel
Underway, Starbourd
side to.
If the sailing vessel is
under 20m the lights can
be combined into a Tri-
colour masthead light
Sailing Vessel
Underway, Starbourd
side to showing optional
all-round lights
These lights must be
used with side and stern
lights (not Tri-colour)
Vessel Restricted in
their ability to
manoeuvre, engaged in
underwater operations
Safe to pass on the side
with two green lights
Pilot Vessel on Duty,
Head On
All-round White over
Red plus the normal
lights of as power driven
vessel
Pilot Vessel on Duty,
Starboard Side to
All-round White over
Red plus the normal
lights of as power driven
vessel
Fishing Vessel (other
than trawling), Stern To
All-round Red over
White plus the normal
lights of as power driven
vessel
Pilot Vessel on Duty,
Port side to
All-round White over
Red plus the normal
lights of as power driven
vessel
Pilot Vessel on Duty,
Stern To
All-round White over
Red plus the normal
lights of as power driven
vessel
Vessel with Tow, Greater
than 50m, Port Side To,
Tow greater than 200m
The tow is measured from
the stern of the towing
vessel to stern of the tow
The towing vessel shows
three mast head visible
from the bow to 22.5
degrees behind the beam
plus side lights
The tow shows side lights
Fishing Vessel Trawling,
Starboard side to
All-round Green over
White plus the normal
lights of as power driven
vessel
Fishing Vessel Trawling,
Probably over 50m, Port
side to
All-round Green over
White plus the normal
lights of as power driven
vessel
Fishing Vessel Trawling,
Stern To
All-round Green over
White plus the normal
lights of as power driven
vessel
Vessel with Tow, Less than
50m, Starboard Side To,
Tow less than 200m
The tow is measured from
the stern of the towing
vessel to stern of the tow
The towing vessel shows
two mast head visible from
the bow to 22.5 degrees
behind the beam plus side
lights
The tow shows side lights
Vessel, Probably greater
than 50m, Starboard
Side To, Long pushing
another vessel
The towing vessel
shows two mast head
visible from the bow to
22.5 degrees behind the
beam plus side lights
The tow shows side
lights
Fishing Vessel (other
than trawling),
Starboard side to
All-round Red over
White plus the normal
lights of as power driven
vessel
Power Driven Vessel
Underway, probably
over 50m, port side to.
Vessels under 50m do not
have to show two
masthead lights but may
choose to.
The forward masthead
light is the lower of the
two.
Vessel with Tow, Probably
greater than 50m, Head On,
Tow greater than 200m
The tow is measured from the
stern of the towing vessel to
stern of the tow
The towing vessel shows
three mast head visible from
the bow to 22.5 degrees
behind the beam plus side
lights
The tow shows side lights
Fishing Vessel Trawling,
Stern To
All-round Green over
White plus the normal
lights of as power driven
vessel
Fishing Vessel Trawling,
Port Side to
Purse Seine Fishing
(two all-round yellow
flashing lights),
hampered by her gear,
making way